ZTE Corporation ZM8300G Manuale Utente
ZTE ZM8300G Module Hardware User Manual
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Parameter
Value
the
temperature
is
higher than 217℃
seconds
5.3 Repair Procedure
5.3.1
Repair Procedure
Module dismantling
– treatment in weld area – module installation – visual inspection –
feature validation
5.3.2
Module Dismantling
Apply the flux around the module to be dismantled evenly, fully melt the flux and the solder
paste in the weld area using a heating device, and dismantle the module using a dedicated
pick-up jig.
5.3.3
treatment in weld area
Remove existing solder using a soldering iron and a suction line to keep the weld area
flat.
flat.
Clean the pads and remove residues.
Fill the pads with a certain amount of solder paste using a rework steel mesh.
5.3.4
Module Installation
Mount the module accurately on the pads using a dedicated jig, and heat the main board
according to the preset temperature curve. After the main board is cooled, use X-RAY to
ensure that the module is reliably welded.
5.3.5
Visual Inspection
Ensure that the module is flat without deformation, no residues exist on the surfaces and
surrounding areas, and surrounding devices are not damaged.
5.3.6
Feature Validation
Test the repaired module and ensure that the module is operating properly.